Honda BF75, BF100, BF8A Outboard Motors Shop Manual, Page 41Get this manual
DISASSEMBLY AND SERVICE CARBURETOR (BCOSC)
Before disassembly, loosen the drain screw and drain the carburetor and clean the outside of the carburetor The pilot screw plug should not be removed unless the carburetor is overhauled
FLOAT CHAMBER REASSEMBLY: Install so that the drain screw faces toward pilot screw side
DRAIN SCREW FLOAT VALVE ASSEMBLY: Check for worn valve or weak spring before installationFLOAT VALVE
FLOAT ASSEMBLY: Check for smooth movement after installationFLOAT